The Lilac is an ancient shrub

The Lilac is an ancient shrub
But ancienter than that
The Firmamental Lilac
Upon the Hill tonight --
The Sun subsiding on his Course
Bequeathes this final Plant
To spectacle, but not to Touch[^a1]To Contemplation -- not to Touch --
The Flower of Occident.
Of one Corolla is the West --
The Calyx is the Earth --
The Capsules burnished Seeds the Stars --
The Scientist of Faith
His research has but just begun --
Above his synthesis
The Flora unimpeachable
To Time's Analysis --
"Eye hath not seen" may possibly
Be current with the Blind
But let not Revelation
By theses be profaned --[^a2]detained --

[^a1: To spectacle, but not to Touch | To spectacle, but not to Touch]

[^a2: profaned -- | profaned --]